@DoctorKarl @archi_sherbs walking a km burns about 75% of the calories that running a km would

I was still gathering my resources for a retort when a new article crossed my desk, and changed my cosmos. In "Energy Expenditure of Walking and Running," published last December in Medicine & Science in Sports & Exercise, a group of Syracuse University researchers measured the actual calorie burn of 12 men and 12 women while running and walking 1,600 meters (roughly a mile) on a treadmill. Result: The men burned an average of 124 calories while running, and just 88 while walking; the women burned 105 and 74. (The men burned more than the women because they weighed more.) Swain was right! The investigators at Syracuse didn't explain why their results differed from a simplistic interpretation of Newton's Laws of Motion, but I figured it out with help from Swain and Ray Moss, Ph.D., of Furman University. Running and walking aren't as comparable as I had imagined. When you wa...